47704140 has 120 divisors (see below), whose sum is σ = 163315152. Its totient is φ = 11560320.

The previous prime is 47704127. The next prime is 47704147. The reversal of 47704140 is 4140774.

47704140 = T₂₂₈ + T₂₂₉ + ... + T₆₆₇.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (47704147) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16482 + ... + 19158.

Almost surely, 2^47704140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47704140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81657576).

47704140 is an abundant number, since it is smaller than the sum of its proper divisors (115611012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47704140 is a wasteful number, since it uses less digits than its factorization.

47704140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2709 (or 2698 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 47704140 is about 6906.8183702773. The cubic root of 47704140 is about 362.6758940276.

The spelling of 47704140 in words is "forty-seven million, seven hundred four thousand, one hundred forty".